Electrosynthesis of Pd Single-Crystal Nanothorns and Their Application in the Oxidation of Formic Acid

被引：99

作者：

Meng, Hui ^{[1
]}

Sun, Shuhui ^{[1
]}

Masse, Jean-Philippe ^{[2
]}

Dodelet, Jean-Pol ^{[1
]}

机构：

[1] INRS Energie Mat & Telecommun, Varennes, PQ J3X 1S2, Canada

[2] Ecole Polytech, CM 2, Montreal, PQ H3T 1J4, Canada

来源：

CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 22期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1021/cm8014513

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

With a square wave electrochemical reduction method, Pd single-crystal nanothorns (Pd NTs) are prepared at room temperature, without template or surfactant. By varying the potentials applied, we can control the length and accumulation state of the Pd NTs. TEM study shows that the growth of the thorn occurs along the (2 (2) over bar0) plane. The nanothorn is made by a succession of epitaxic dodecahedrons of decreasing sizes aligned in the direction of the (111) plane. The surface chemical state of the Pd NTs is studied with XPS. Pd NTs have higher catalytic activity than commercial Pd black for the oxidation of formic acid.

引用

页码：6998 / 7002

页数：5

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